Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/ramassof/backup.ramas.dev/vendor/guzzlehttp/psr7/tests/CachingStreamTest.php:16 Stack trace: #0 {main} thrown in /home/ramassof/backup.ramas.dev/vendor/guzzlehttp/psr7/tests/CachingStreamTest.php on line 16